Question
Find roots of polynomial $$ p(x) = n^2-1 $$
Answer
The roots of polynomial $ p(n) $ are:
$$ \begin{aligned}n_1 &= 1\\[1 em]n_2 &= -1 \end{aligned} $$Explanation
The solutions of $ n^2-1 = 0 $ are: $ n = -1 ~ \text{and} ~ n = 1$.
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